The Infectious risk has shown an upward trend over the past 12 weeks, reaching a notably higher level in the most recent week compared to prior weeks..
Allergy risk activity has been climbing over the past 12 weeks in Clark, Illinois.
Pollution risk activity has been trending upward over the past 12 weeks in Clark, Illinois.
Weather risk activity has been increasing over the past 12 weeks in Clark, Illinois.
Last updated: July 6, 2026
Data refreshed weekly